五强溪500kV GIS升压站地网电流分布及对二次线感应电压的计算

Calculation for Current Distribution in Groullding Net and the Induced Voltage on the Secondary System for the 500 kV GIS Step-up Substation of Wuqiangxi

计及接地体本身参数及对单元接地体采用以集中参数取代分布参数的方法,对五强溪500 kv GIS升压站工频短路电流和雷电流在接地网上的分布及对二次线的感应电压进行了数值计算,其成果为该站二次系统的“抗干扰设计”提供了参考数据。

The distribution of shorting current and lightning current in grounding net is described and the induced voltage on the secondary system for a 500 kV GIS step-up substation is calculated on the substitu.tion of concentrated parameters for distributjon parameters of the grounding conductor. The results are avai-lable for reference on the secondary system interference resistance design of this substation.